665 
Notaspis momlijjea, Mich., 38J. 
Notodoris, £erffh, §64, 566. 
— citi-iiia, Berf/h, 564, 567. , 
— gardiuei-i, Eliot, 523, 565, 567,578, 579. 
— minor, Eliot, 567. 
Notoplites, Hannev *, 295, .314, 325, 327, 
329, 330, 339, 343, 347, 348, 358. 
— antarcticus, Harmer*, 352. 
— aviculariae, Harmer*', 351. 
— biloba, Harmer *, 350. 
— crateriformis, Harmer*, 350. 
— drjgalskii, Harmer *, 352. 
— elongatus, Harmer *, 351, 353. 
— jt'ft'reysii, Harmer*, 351. 
— marsupiatus, Harmer'^, 35], 352. 
— normani, Harmer *, 353. 
— perditu.? (F ), Harmer *, 353. 
— I'ostratu.s, Harmer *, 295, 348, 348, 
359. 
— simplex (?), Harmer*, 353. 
— smittii, Harmer^, 352. 
— tenuis, Harmer *, 352. 
— vanhoileni, Harmer *, 353. 
— watersi, Harmer *, 353. 
Notopoides, 38, 66, ()7, 68. 
— latus, Henders., 26, 60. 
Notopiis, Haan, 31, 32, 41-79. 
— Be^'i'ichii f, 52. 
— dorsipes, Fabr., 25, 31, 48, 60-79. 
— ovali.s, Henders., 26. 
Notosceles, Bourne *, 25, 48, 50, 58, 66, 67, 
70 ; genus descr., 73. 
— cliiramonis, Bourne^', 2-5, 31, 00, 74, 
77-79. 
Nubecularia, Defr., 601. 
— bradyi, Millett, 601. 
— iiiflata, Brady, 601. 
— lucifuga, Defr., 601, 646. 
— scliauinslandi, Heron- All. 4 Earl.*, 601, 
646; mentd., 509, 600, 602. 
!Xuclearia simplex, Cienk., 457, 473. 
Nymphasa, Linn., in Higlilow Tarn, 424. 
Oak, " Wainscot," mentd., 219. 
Occiput of Clilorops, 405. 
Ocelli of Clilorops, 405. 
Odonata, mentd., 144. 
O'Donogliue, C. H., Opisthobraucliiata 
from Abrolhos, 521. 
Oicomonas termo, Kent, 452, 457. 
Oligometra carpenteri, Bell, meutd., 235. 
— serripinna, A. H. Clark, 235; distrib., 
231. 
Onohidiopsis, Berijh, 92. 
Onchoporella, Busk, 308, 314, 316. 
— homb'/cina, Busk, 314. 
— buskii, Harmer "', 295, 314. 
— diaphana. Busk, 314. 
— ligulata. Busk, 314. 
Omscigaster distans, Eatun, wing-veins, 
153, 158, 161. 
Ontogenies, phyletio succession, 83. 
Operculina, Orb., 641. 
— complauata, Orb., 641. 
Ophiactis savignyi, Ljunyman, 246 ; 
distrib., 229, 2-32. 
Ophiocoma brevipes, Peters, distrib., 232; 
mentd., 247. 
var. ^■ariegata, H. L. Clark, 247. 
— dentata, mentd., 247. 
— doderleini, mentd., 247. 
— insularia, mentd., 247. 
— variegata, E. A. Smith, 247. 
Ophiolepis imbricata, Miiller & Troschel, 
248. 
— savignyi, Miiller & Troschel, 246. 
Ophionereis porrecta, Lyman, 247 ; distrib., 
232. 
Opliioplocus imbrieatns, Lyman, 248 ; 
distrib., 232. 
Ophiothrix longipeda (Lam.), distrib., 232. 
— michaelseni, Koelder, 246 ; dislrib., 230, 
2.33. 
— spongicola, Stimji., 246 ; distrib., 229, 
230, 232. 
— stelligera, Lyman, 247 ; distrib., 230, 
232. 
Ophiuroideafrom West Australia, 246-248. 
Ophrydium, Ehrenb. P, 450. 
Opistbobrancbiata from Abrolhos, 521. 
Opisthograptis cratasgata, 86. 
Orbitolina sphterulata, Park. & Jones, 
638. 
— i-esicularis, Parle. & Jones, 638. 
Orbitolites, Lam., 610. 
— couiplanata, Lam., 611, 612. 
var. plicata, Lam., 611. 
— duplex. Carp., 610. 
Ovipositiou and the egg of Lyctus briinneus, 
Silepli., 217-227. 
Ovipositor of Lyctus, 586-695. 
